ABSTRACT

This study aimed to verify the daily variation in the chromatic visual sensitivity of healthy subjects. The study included 35 male adults, aged between 20 and 40 years old (M = 24.97; SD = 4.9). The evaluation of color perception was made through the Cambridge Colour Test, using the Trivector and Ellipse tests. The Pittsburgh Sleep Quality Index, the Sleep Diary, and the Karolinska Sleepiness Scale were used to assess possible influences of circadian rhythmicity. Significant differences were found for the protan confusion axes at 8 am (Z = 2.9; p = 0.012) and at 8 pm (Z = 2.8; p = 0.01), and deutan at 8 am (Z = 2.6; p = 0.028) and at 8 pm (Z = 3.5; p = 0.001), and for the A1 ellipses areas at 8 am (Z = 2.5; p = 0.037) and at 8 pm (Z = 2.4; p = 0.018), and A3 at 8 am (Z = 2.1; p = 0.039) and at 8 pm (Z = 3.6; p = 0.001). Thus, chromatic sensitivity can be characterized by an inverted U-shaped curve, with peak sensitivity in the morning and evening, and attenuation in the afternoon.

摘要

本研究旨在验证健康受试者的色度视觉敏感度的每日变化。该研究包括 35 名男性成年人，年龄在 20 至 40 岁之间（M = 24.97；SD = 4.9）。颜色感知的评估是通过剑桥颜色测试，使用三向量和椭圆测试进行的。匹兹堡睡眠质量指数、睡眠日记和卡罗林斯卡嗜睡量表用于评估昼夜节律的可能影响。在上午 8 点 (Z = 2.9; p = 0.012) 和晚上 8 点 (Z = 2.8; p = 0.01) 和上午 8 点 (Z = 2.6; p = 0.028) 和 deutan (Z = 2.6; p = 0.028) 和晚上 8 点（Z = 3.5；p = 0.001），上午 8 点（Z = 2.5；p = 0.037）和晚上 8 点（Z = 2.4；p = 0.018）的 A1 椭圆区域，以及上午 8 点的 A3 （Z = 2.1；p = 0.039）和晚上 8 点（Z = 3.6；p = 0.001）。因此，